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Chemical Instabilities as Critical Phenomena [PDF]

Physical Review A, 1977
Much attention has been given in recent years to universal features characterizing instabilities and transition phenomena in equilibrium and non-equilibrium systems [1]. Laser transitions [2], hydrodynamical instabilities [3], cooperative phenomena in data processing [4] and various examples of chemical and biochemical instabilities [5] are only a few ...
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Chemical wave refraction phenomena

Physical Review E, 1996
Motivated by recent work of Steinbock, T\'oth, and Showalter [Science 267, 868 (1995)] examining chemical wave propagation within membrane labyrinths soaked with Beluosov-Zhabotinsky reagent, we have investigated refraction phenomena using similar tools, with an eye to verify the general applicability of Snell's law for such nonlinear waves, as well as
Sin-Chun Hwang, Timothy Halpin-Healy
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Visualizing Chemical Phenomena in Microdroplets

Journal of Chemical Education, 2010
Phenomena that occur in microdroplets are described to the undergraduate chemistry community. Droplets having a diameter in the micrometer range can have unique and interesting properties, which arise because of their small size and, especially, their high surface area-to-volume ratio. Students are generally unfamiliar with the characteristics of small
Joseph M. Wiener, Sunghee Lee
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LEARNERS’ EXPLANATIONS FOR CHEMICAL PHENOMENA [PDF]

Chem. Educ. Res. Pract., 2000
There is a growing body of research which explores the nature of explanation in science classrooms. The vast majority of this work highlights the teacher’s role as explainer of scientific phenomena, while little has explored the quality of learners’ own explanations.
Michael Watts, Keith S. Taber
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Transport Phenomena in Chemical Flooding

SPE Advanced Technology Series, 1996
Abstract A chemical flood simulator of a three-component, two phase system has been extended to include concentration dependent functions: phase behavior, relative permeabilities, capillary pressure, interfacial tension, residual saturations, phase viscosities, wettability, etc..
P.C. Porcelli, Bidner
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ChemInform Abstract: Chemomechanics: Chemical Kinetics for Multiscale Phenomena

ChemInform, 2011
AbstractReview: 102 refs.
Zhen Huang, Roman Boulatov
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Physical phenomena‐‐chemical phenomena: do pupils make the distinction?

International Journal of Science Education, 1989
Abstract This research explored: (a) the representations and conceptions of some Greek pupils of the concept of chemical reaction, and (6) the ways in which these pupils categorized a set of physical and chemical transformations of matter. The results show that pupils group physical and chemical phenomena in different ways, using different criteria ...
Christina Solomonidou, Heleni Stavridou
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On a variety of wave phenomena in chemical reactions

The Journal of Chemical Physics, 1974
A variety of wave phenomena are analyzed and discussed for systems in which chemical reactions and transport take place. Certain families of wave solutions of reaction-transport equations arise owing to the weak stability of a reference state to a class of perturbations.
Peter J. Ortoleva, John Ross
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Volatilization Phenomena and Chemical Reactions

1966
In § I.I we introduced the term ‘sample excitation’ to denote the group of processes that determine the radiation output of the source for a given sample. In theory, the aggregate of processes can be treated in separate steps; in practice, the processes take place jointly, however, and observed intensities therefore reflect overall effects.
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Chemical Phenomena at the Surface of Nanoparticles

2001
In principle, the precise knowledge of the composition and the structure of a material allows the determination of the bulk properties. In a reverse way, the reproducibility of the composition and structure of the material should ensure the reproducibility of the material properties.
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